Finding the Third Proportional to 143,472 and 196,944

Step by Step Solution

1. Step 1: Write the proportion equation
   143,472 : 196,944 = 196,944 : x
2. Step 2: Convert to fraction form
   143,472/196,944 = 196,944/x
3. Step 3: Cross multiply
   143,472x = 196,944 × 196,944
4. Step 4: Simplify right side
   143,472x = 38,786,939,136
5. Step 5: Solve for x
   x = 38,786,939,136/143,472
6. Step 6: Final answer
   x = 270,345.01